Hello and thanks for all the fish ;-). It fits my dreams for the perfect shell almost exactly. One example for powerful orthogonality that I always wanted to have was to remove the repetition between similar process substitution commands. This is frequently useful with diff:
$ diff <(cd DIR1; find -type f -print0 | xargs -0 md5sum) <(cd DIR2; find -type f -print0 | xargs -0 md5sum) "psub" is just a command which prints a filename, solving it neatly (*): > diff (for d in DIR1 DIR2; cd $d; find -type f -print0 | xargs -0 md5sum | > psub; end) But what about input substitutions: $ foo --log >(sendmail me -) --output >(wput ftp://my -) While less frequently needed, they are still desirable. One simple syntax I can think of is (psub <command>): > foo --log (psub sendmail me -) --output (psub wput ftp://my -) This will more-of-less work because if psub is running the command it can steal stdout for printing the pipe filename. But then the program can't output to the terminal - it must be redirected to /dev/null or something like that. Part of this problem is that pipelines won't work: foo --output (psub sort | sendmail me -) This can't work because we want the output of psub. Any ideas? Devilish thought: perhaps "psub command" should print the pipe name to stdin? We need to tell the command substitution to use stdin somehow... (*) An unrelated problem: it only works for absolute dirs. I see no anolog to bash's "(...)" running code in a sub-process (begin..end is run in the same shell). How can I change directories temporarily? It's easy to write a "subshell" command but to be convenient it should accept pipelines, blocks and loops -- so we need a builtin? -- Beni Cherniavsky <[EMAIL PROTECTED]>, who can only read email on weekends. Governments are like kernels - everything possible should be done in user space. N�HS^�隊X���'���u��<�ڂ�.���y�"� �*m�x%jx.j���^�קvƩ�X�jب�ȧ�� m�ݚ�����v&��קv�^�+����j�Z����{az����^��h���n���)��{h���� �ا��+h�(m�����Z�� jY�w��ǥrg
